Diode Pumped Er:LiYF[sub]4[/sub] Cw Laser At 2.8 µm With 10% Slope Efficiency

Leon Esterowitz; Robert Stoneman

doi:10.1117/12.951174

6 July 1989 Diode Pumped Er:LiYF₄ Cw Laser At 2.8 μm With 10% Slope Efficiency

Leon Esterowitz, Robert Stoneman

Proceedings Volume 1040, High Power and Solid State Lasers II; (1989) https://doi.org/10.1117/12.951174
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Highly efficient diode pumped solid state lasers at room temperature operating near the peak of the water absorption near 3 μm have many potential medical applications.' An excellent candidate for this type of laser is the 2.8 μm ⁴I_11/2 → ⁴I_13/2 laser Er:LiYF₄ (YLF). Laser diode pumping of an 8% Er:YLF sample producing continuous-wave laser emission at 2.8 μm was previously reported with a 0.7% slope efficiency and an absorbed power threshold of 60 mW.² In our current work we demonstrate a greatly reduced threshold for CW laser emission, 20 mW, and more than an order of magnitude increase in slope efficiency, 10%, in a 30% Er:YLF sample.

Citation Download Citation

Leon Esterowitz and Robert Stoneman "Diode Pumped Er:LiYF₄ Cw Laser At 2.8 μm With 10% Slope Efficiency", Proc. SPIE 1040, High Power and Solid State Lasers II, (6 July 1989); https://doi.org/10.1117/12.951174

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